I dont know if this has been mentioned before, but heres a little bit of minor trivia.
Furius Baco can run 3 trains, but it literally never has. The transfer track/holding brake is meant to be an unload platform but has been disabled ever since the ride was built.
Let me elaborate on this one. Furius Baco was sold to PortAventura witn an hourly capacity of around 1,400 pph running 3 trains. As
@Projektion mentions, the ride was designed with 5 blocks to allow for 3 trains as follows: station (load), preshow area, launch (layout), service brakes and transfer track (unload).
Upon opening, the coaster started using 2 trains due to many problems with the ride being a prototype. However, during peak season (before the ride had to be shut down due to cracks in the foundations in the lake) the park tried to run 3 trains as originally intended but for a short period of time. To achieve optimal operation, there had to be 8 attendants (!!) on the ride platform, which would have been the biggest ride crew in the park by far (normally, PA are cheap-asses and staff their rides with 2-3 people on the platform). Since this proved an operational nightmare (high operations cost, extremely low dispatch intervals which put a lot of stress on the ride's crew and guests) to increase the hourly capacity by a small margin (compared to 2-train operation) the park finally decided it was just not worth the hassle and resources.
On 2 trains, people board and leave on different sides of the station block. The transfer track is just a waiting block for the train ahead to clear the station, as seen in the picture below:
On 3 trains, people boarded on the current station (left their bags at the far end of the loading side in some cubbies) and unloaded on the same side they had boarded where the current transfer track is (hence the stairs coming from that side of the station building). To hide the maintenance shed and avoid confusion with guests when unloading, the park themed the transfer track with wine barrels.
Bonus information: the preshow doors were disabled shortly after the ride opened after many failed attempts due to issues with the doors tripping the ride sensors into thinking there was an intrusion in the ride preshow area. In fact, if a train in the preshow had to be brought back into the station and said train had already begun the launch sequence (have you ever noticed the slight rollback to align with the catch car?) it was just phisically impossible because the was no clearance between the back of the train and the width of the doors once they were closed.
This caused many issues: the park had to run the ride with the preshow doors open at all times. First, this meant boarding guests could see the entire preshow, thus ruining the surprise. Secondly, the preshow area was too bright and often the media effects couldn't be seen properly. Thirdly, guests often paid more attention to the train ahead about to launch thus slowing down loading/dispatches. And last, for safety, if a (stupid) guest approached the preshow area, the entire ride automatically went down.
After many years of the park running the ride with the huge station doors wide open, PA finally installed a wooden-themed plastic screen that goes up and down after each train has left the station (a bit like Manta at SW San Diego).